Gravity Is Fickle*

“Due to an uneven distribution of mass inside the Earth, the Earth’s gravity field is not uniform - that is, it has “lumps”.

Sadly there are not places in the world where I can perform Matrix-like leaps.
*This is an in-joke, don't worry.
Link: <a href="http://www.csr.utexas.edu/grace/gallery/animations/world_gravity/">World Gravity Model</a>